文献类型：期刊文献

英文题名：The effect of SnO2 on enhancing electrocatalytic property of palladium toward formic acid oxidation

作者：Wang, Junyu[1];Feng, Mengjie[1,2];Hu, Shuozhen[1,3];Zhang, Xinsheng[1,3]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Kunshan Loujiang Expt Sch, Suzhou 215300, Jiangsu, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2023

卷号：48

期号：41

起止页码：15492

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20230613548780);WOS:【SCI-EXPANDED(收录号:WOS:000987850100001)】；

基金：This work is financially supported by the National Natural Science Foundation of China (Project 22005097) . The authors thank the Research Center of Analysis and Test of East China University of Science and Technology for the help with the characterization.

语种：英文

外文关键词：Formic acid oxidation reaction; Pd-based catalyst; Tin dioxide; Pd-O-Sn structure; In-situ ATR-FTIR

摘要：Although palladium (Pd) based materials are considered the best catalyst for formic acid oxidation reaction (FAOR), they are still confronted with a lot of barriers, such as the growth/sintering of Pd nanoparticles (NPs) and the accumulation of adsorbed poisoning intermediates. Herein, tin dioxide (SnO2) decorated carbon black was utilized as the catalyst carrier to synthesize Pd/SnO2/C for FAOR. The introduction of SnO2 significantly reduced the particle size of Pd NPs and forming the Pd-O-Sn structure. Compared with Pd/ C, Pd/SnO2/C owned higher concentration of Oads and less adsorption amount of poisoning intermediates. The oxygen atoms adsorbed on Pd surface were rapidly transferred to SnO2 due to the spillover effect. The FAOR reaction kinetic results showed that the introduction of SnO2 accelerated the diffusion rate of formic acid on the electrode surface. Pd/SnO2/C exhibited high specific activity (5.97 mA cm-2), excellent durability, and high anti-CO poisoning ability toward FAOR due to the introduction of SnO2. (c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.